How Many People Are Named Kieren?
An estimated 612 people in the United States have the first name Kieren. It is used for both genders, with 81.0% male. The average bearer is 18 years old, and Kieren peaked in popularity in 2010 with 36 births that year.
Below you will find a full statistical profile of Kieren as a first name in the United States, including gender data, a year-by-year popularity timeline going back to 1880, a decade breakdown, and state-by-state birth registrations. You can also check how many people share the full name Kieren paired with any surname.
Estimated Living Americans
612
About 1 in 560,056 people in the U.S.
Rarity
Very Rare
Predicted Gender
Male
81.0% confidence
Average Age
18
years old
Peak Year
2010
36 births
Total Registered
620
since 1880
Gender Distribution for Kieren
Kieren is predominantly male (81.0%), though 118 female births have been registered. It functions as a unisex name for a small percentage of bearers.
Kieren as a male name
Ranked #6,023 in 2024
15 male births in 2024
Peak: 2011 (28 births)
Kieren as a female name
Ranked #15,646 in 2014
6 female births in 2014
Peak: 2010 (14 births)
Kieren: Popularity Over Time
SSA records for Kieren span from the 1990s to the 2020s, covering 4 decades of naming data. The most popular decade for this name was the 2000s, when 240 babies were registered. Kieren has declined significantly from its peak in the 2000s. Recent registrations are a fraction of what they were at the name's height.
Kieren by Decade
How has Kieren tracked across different eras? The table below groups all SSA birth registrations into 10-year periods, with separate male and female counts. The colored bar shows each decade's share relative to the peak.
Kieren by State
Kieren + Last Name Combinations
How many people share a full name with Kieren as the first name? Click a combination below to see the estimate, or search any pairing.
Names Similar to Kieren
Other first names starting with K with a similar number of bearers.
Kieren: Questions and Answers
How many people in the U.S. are named Kieren?
We estimate approximately 612 people named Kieren are alive in the United States today. This is based on SSA birth records from 1880 to 2024, adjusted for mortality using CDC life tables. About 1 in 560,056 Americans share this first name.
Is Kieren a common name?
Kieren is classified as "Very Rare" and is more popular than 86.4% of all first names in the SSA database. A total of 620 births have been registered with this name since 1880.
When was Kieren most popular?
Kieren reached peak popularity in 2010, when 36 babies were given this name. The average age of a living person named Kieren is approximately 18 years old, reflecting when the name was most commonly given.
Is Kieren a male name?
Kieren is predominantly male. 81.0% of people with this name are male. See the gender breakdown above for full details.
How many Kieren Smiths are there?
To find how many people share a specific full name, we combine first name and surname frequencies. Try: Kieren Smith, Kieren Johnson, Kieren Williams. You can also search any combination on our homepage.
Where does this data come from?
Our estimates use Social Security Administration birth records (1880 to 2024), adjusted for survival using CDC 2023 life tables broken down by sex. The U.S. population figure (342,754,338) is from the Census Bureau's July 2025 estimate. Full methodology.
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